The town of Wellesley lifted the boil water order for residents that had been in place since Thursday afternoon.

Residents had been told to boil their water before using because testing found E. coli and coliform bacteria in the town’s water supply.

Wellesley officials said Saturday that the water system has been flushed extensively and more tests have not yielded additional positive E-coli tests. The Department of Environmental Protection authorized the town to lift the order.

An investigation is still continuing into the source of the positive E-Coli test.

Some customers may temporarily experience discolored water or lack of water pressure, but it does not pose a health risk.

Here’s what the town is advising residents to do now:

-Flush faucets, showers, water and ice dispensers and water treatment units to clear plumbing of any lingering contaminated water

-Run cold water taps until water feels cold for one minute or more before drinking, brushing teeth, or food preparation

-Run cold water first in single-level faucet

-Change all faucets to hot water to clear hot water pipes and water heater of untreated water